Don't make maintain_sb query at module import
Don't make maintain_sb query at module import

The -q/--qlobber option of maintain_migrate requires that dns_migrate be
imported. Because get_delegated is called when dns_migrate is imported,
it's possible that the maintain sandbox database doesn't exist (which
raises an exception) or that the data in maintain_sb is out-of-date
(which causes results inconsistent with the intent of -q/--qlobber).

murrown/cyder,OSU-Net/cyder,drkitty/cyder,drkitty/cyder,zeeman/cyder,OSU-Net/cyder,akeym/cyder,OSU-Net/cyder,zeeman/cyder,murrown/cyder,akeym/cyder,drkitty/cyder,drkitty/cyder,murrown/cyder,zeeman/cyder,akeym/cyder,zeeman/cyder,murrown/cyder,OSU-Net/cyder,akeym/cyder